cnvkit suitable read depth , R version, reliable cutoff

Question

[linouhao]

Dear all, I do as the recommend, conda install cnvkit, but I met several questions cnvkit.py version 0.9.7

1 it install R 4.0.2, which is not compatible with many r packages, can I specify R version , such as 3.6.3, what is more, it overrided the R I ever installed

2 is there a recommended sequence depth for wes or taget panel ?

3 is there a reported cnv cutoff for cnvkit, here means a better reliable cnv

4 can cnvkit directlty gives result of which region or gene the cnv is

5 in the doc https://github.com/etal/cnvkit has a paragraph describing Testing cd test/ make but after conda install cnvkit, I can not find test directory

thanks a lot